Cambridge-lee Industries DL04060825BX Mini-split Line Set 25 Ft

Product Description

The CAMBRIDGE-LEE INDUSTRIES DL04060825BX is a pre-insulated copper mini-split line set designed for residential and light-commercial ductless HVAC installations. The set includes a 1/4-inch liquid line and a 3/8-inch suction line, both wrapped in a 1/2-inch thick black polyethylene hard-shell insulation jacket. At 25 feet in length, it covers the typical wall-penetration run from an indoor air handler to an outdoor condenser unit. Both ends are plain (unflared), leaving the field technician to flare or braze connections on-site per the equipment manufacturer's requirements. Licensed HVAC technicians are the primary installers of this component.

This line set is suited for single-zone and multi-zone ductless mini-split systems in residential new construction, retrofit, and replacement applications. The 25-foot length accommodates most standard exterior wall and short-run rooftop installations. The black polyethylene hard-shell jacket resists UV exposure and physical damage in exposed runs. The plain-end configuration supports field flaring with standard HVAC flaring tools or silver-brazed connections, giving the installer flexibility to match the equipment manufacturer's specified connection method.

Key Features

• 1/4-inch liquid line and 3/8-inch suction line in a single pre-paired assembly
• 1/2-inch thick black polyethylene hard-shell insulation jacket for UV and impact resistance
• 25-foot length suitable for standard residential mini-split runs
• Plain end x plain end configuration supports field flaring or brazing
• Copper construction meets ASTM E9600 material specification
• Listed to ASTM E84 and C1427 flame and smoke standards

Compatibility

Designed as an OEM-style replacement and new-installation line set for residential and light-commercial ductless mini-split systems requiring a 1/4-inch liquid line and 3/8-inch suction line configuration.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with refrigerant piping practices and applicable mechanical codes. Recover or isolate refrigerant from the system before disconnecting any existing line set, following EPA Section 608 requirements. Plain ends must be field-flared to the equipment manufacturer's specification using a calibrated flaring tool, or silver-brazed with nitrogen purge per standard industry practice. Avoid sharp bends that could kink the copper tubing or compress the insulation jacket during routing.

Technical Specifications

• Liquid Line Diameter: 1/4 inches
• Suction Line Diameter: 3/8 inches
• Insulation Thickness: 1/2 inches
• Length: 25 feet
• End Connection: Plain End x Plain End
• Insulation Material: Black Polyethylene Hard Shell
• Conductor Material: Copper
• Material Specification: ASTM E9600
• Applicable Standards: ASTM E84, C1427, UL
• Application: HVAC

Standard Information

• Brand: CAMBRIDGE-LEE INDUSTRIES
• Manufacturer Part Number: DL04060825BX